Cushion cap for stapling machines and the like



June 26, 1923.

L. OBSTFELD CUSHION CAP FOR STAPLING MACHINES AND THE LIKE Filed April 6,. 1922 l/VVE/VTOR i State of New Patented June 26, 1923.

. ll" ST ram orrica.

CUSHION CAP FOR STAPLING MA Application filed April 6 To all whom it may concern:

Be it known that I, Loo OBSTFELD, a citizen of the United States, and a resident of the borough of Manhattan, city,county, and

York, have invented an Impi'ovement in Cushion Caps for Stapling achines and the like, of which the followis a specification.

TVIy present invention relates to cushion caps for stapling machines and the like and aims to provide devices of the general character referred to which shall be simple in construction, which shall be readily and conveniently applicable to the devices with which the same are intended to be used, which shall be economical to manufacture and readily marketable, and which shall admirably and successfully serve the purpose for which they are intended.

By way of example, I shall in the accompanying specification describe and in the annexed drawing show several illustrative embodiments of my present invention, it being, however, clearly understood that my invention is not limited to the embodiments thereof which are herein shown and described for purposes of illustration only. Referring to the drawings, Figure 1 is a view in side elevation of one embodiment of my present invention shown as applied to a common type of stapling machine;

- Figure 2 is a cross-sectional view of the cushion cap shown in Figure 1;

Figures 3 and 4 are similar views of two otlgar cushion caps of modified construction; an Figures 5 and 6 are longitudinal sectional views, along lines 5-5 and 6-6 of Figures 4.0 2 and 4, respectively.

Referring first to the device illustrated in Figures 1, 2 and 5 of the drawing, 10 indicates the main body portion of an ordinary type of stapling machine, having the plum ger 11 maintained in raised or inoperative position by'the spring 12, and provided at its upper end with the operating head 13.

Ordinarily the operating head 13 is hit or struck by the, open palm of the person opcrating the machine, thus bringing the plunger 11, against the action of the spring 12, into the operating position to sever and apply one of the staples in the machine 10.

his act often causes considerable discom- GNOR TOMARKWELL MANUFACTURING 00.,

CORPORATION OF NEW YORK.

CHINES AND THE LIKE.

1922. Serial No. 550,048.

fort or even pain to the hand of the person operating the machine. This is particularly the case where the device is a part of the ordinary ofiice equipment and is operated by young women for whom the operation of the machine is often a distasteful and uncomfortable affair. 7

By means of the cushion cap of the present invention, I render the operation of the machine comfortable and even improve such operation, since the operating head may now be struck a full, square blow with the certainty that the staple will be properly severed and applied, and with the further certainty that the hand of the opera-tor will not be hurt or injured by the operating blow.

For this purpose, I provide a cushion cap generally designated by reference character 14. This cushion cap comprises an upper dome-shaped member 15, having an inner dome-shaped face 16, and a lower lipshaped member 17, attached to, and preferably integral with, the upper member 15. The member 17 is preferably obliquely and inwardly turned or inclined. It will also be noted, as more clearly shown in Figures 1 and 2 of the drawing, that the thickness of the rubber or other resilient material of which the cushion cap 14 is preferably made, diminishes from the center of the upper dome-shaped member outwardly and obliquely down to the inner edge of the lipshaped member 17.

In order to render the device even more efiicient for the purpose of preventing injury to the hand of the person operating the machine, I prefer to provide the upper dome-shaped member with auxiliary pneumatic cushioning means. Such auxiliary pneumatic cushioning means may comprise a substantially centrally disposed indentation 18, providing an air pocket or cushion between the upper surface of the operating head 13 and the inner domeshaped face 16 of the upper member 15.

If desired, the auxiliary pneumatic cushioning means may comprise, an'air cell 18 provided between an inner layer 19' and the inner' face 16' of the upper dome-shaped member 15', as more clearly shown in Figure 4 of the drawing. On the other hand, the auxiliary pneumatic cushioning means may be altogether omitted, as more clearly shown in Figure 3 of the drawing where the upper dome-shaped member 15" is shown as being without any auxiliary pneumatic and construction of the lower lip-shaped member 17. This memberis of comparatively light-weight, flexible material, especially as Lcomparedwith the comparatively heavy resilient material, such as rubber, of which the upper dome-shaped member 15, or its equiv, alent, is preferably formed.

The dome-shaped member 15, or its equivalent, especially by reason of its construction, which provides the greatest amount of resilient material substantially at the center of the dome-shaped member, and especially where auxiliary pneumatic cushion ing means, such as the air cushion l8 orthe air cell 18, is provided, serves to cushion the blow delivered by the hand of the opera tor to the operating head 13 of the stapling or other machine.

1 The device is simple but very efiicient, may be easily manufactured, is easily applied, and is very satisfactory in use.

What I claim is:

A cushion cap for stapling machines and the like comprising an upper dome-shaped cushioning member having an inner domeshaped face and an obliquely and inwardly disposed peripheral member, said upper member being provided with auxiliary pneumatic cushioning means in the form of a substantially centrally disposed indentation on the inner face thereof.

In testimony whereof, I have signed my name to this specification this 27 day of March 1922.

LOU OBSTFELD. 

